Amazon.com Inc. paid nearly 30 billion yen ($274 million) in corporate taxes in Japan over the last two years after changing its policy to book sales in the country, sources with knowledge of the matter said Sunday.A Japan unit of Amazon used to be running a business by receiving outsourcing fees from its parent in the United States, basically not involving in making contracts with its business partners in the Asian country, thereby avoiding higher tax bills, the sources said.But Amazon Japan G.K., which does not disclose its earnings figures, started making contracts on its own after it wa…READ FULL ARTICLE